Question: Which extrasolar planet has the largest semi-major axis?
Paraphrase: Which extra solar planet has the largest semi-major axis?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q44559 . ?ent wdt:P2233 ?obj } ORDER BY DESC(?obj)LIMIT 5 
Answer: WASP-174b, TYC 9486-927-1b, HIP 77900 b, HD 97334 b, WD 0806-661b